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AukeHoekstra Profile picture
@AukeHoekstra
Oct 1, 2020 • 4 tweets • 1 min read • Read on X
I have the feeling that this election will not be like others and that Americans don't grasp the enormity of this election.

EVERY MOVE that this president and his party can get away with will be used to CHEAT the majority out of a victory.

NOT every LEGAL move, but EVERY move.
Expect organised riots and intimidation at polling stations. Disqualifying/destroying mail-in ballots. Malfunctioning polling machines. Rows at certain polling stations. Misusing police. Legal loopholes. Online troll armies.

The works.

It's NOT going to be business as usual.
You saw in the last debate how this president behaves when everybody's looking. Imagine what he will do behind the screens.

I studied public administration and most dictatorships where democracies before something like this happened.
I honestly don't think that's hyperbole.
On a lighter note: this might be the only version of the presidential debate that's fun to watch.

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More from @AukeHoekstra

AukeHoekstra Profile picture
May 18
Many people think solar and wind won't be able to keep the grid stable because they lack "inertia".

I think solar, wind and batteries will do a BETTER job and I think you can explain it thus:
- the old grid is a record player
- the new grid a digital player
🧵 Image
If you play vinyl records, the rotating mass of the turntable is used to keep the speed steady. This leads some vinyl enthusiasts to seek more mass because that will keep things more steady.

This turntable by Excel audio attaches a separate mass. (Overkill but makes my point.) Image
In the same way the inertia in the rotors of current power plants helps the grid to keep a steady 50 Hz (in e.g. Europe) or 60 Hz (in e.g. the US) frequency.

These machines turn a heavy copper coil wound around a heavy iron core and this helps keep the grid frequency steady. Image
Read 21 tweets
AukeHoekstra Profile picture
Aug 13, 2024
Great to see more and more attention for flexible grid pricing.

We must say goodbye to the "copper plate" that offers free power everywhere and every time. It's hideously expensive and outdated.

What we need is smart flexibility.
🧵
The underlying reason is that the costs of different components of the energy system changed:

Some remained high (e.g. pylons, fossil & nuclear)

Some plummeted (e.g. solar, wind, batteries, EVs & inverters)

Some became possible at all (e.g. measuring & steering in real time)
So now we should make good use of these new, clean, abundant and affordable options, even if it means doing things a bit differently than before.

So what should we do different regarding grid congestion pricing?
Read 20 tweets
AukeHoekstra Profile picture
Jul 28, 2024
Some are angry about the "anti-Christian depiction of the last supper" at the Olympic Opening ceremony. (@elonmusk and @realDonaldTrump among others)

A Dutch art historian explains it's not the last supper but a Dutch painting of the Olympic gods.
And I explain what I loved.
🧵
Image
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Original Dutch thread here. I just translated it.


@WSchoonenberg shows that the "tableau vivant" (living painting) is depicting "The Feast of the Gods" by Jan van Bijlert, from 1635.
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The heathen Gods have gathered on mount Olympus for a feast. Sun god Apollo is recognizable by his halo, Bacchus (Dionysus) by the grapes, Neptune (Poseidon) by his trident, Diana (Artemis) by the moon, Venus (Aphrodite) by Cupid.


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Read 24 tweets
AukeHoekstra Profile picture
Jul 9, 2024
With new batteries solar and wind are not only faster and cleaner, but also cheaper.

I'm estimating:
$0.08/kWh for PV+batteries
$0.07/kWh for wind+batteries

@skorusARK gives a good overview of current wisdom, but strongly declining battery prices change EVERYTHING
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I've recently written about how I was surprised I missed the enormous consequences of price reductions in batteries.

LFP cells are now $50/kWh and last 10 000 cycles.
That's $0.005 per kWh.

Say we double that to pack the cells and you are at $0.01/kWh.aukehoekstra.substack.com/p/batteries-ho…
If you add batteries to solar PV, not all energy has to flow through batteries. But let's keep it at $0.01 and add that to the price of solar. That makes PV (and wind) SUPER cheap!

Batteries must be discounted more quickly you say?
Read 10 tweets
AukeHoekstra Profile picture
Jun 20, 2024
Cheap stationary batteries will pave the way for wind and solar in cheap and resilient energy grids. Unfortunately the @IEA is mispredicting it (again).

Thread based on a free substack article I just wrote.
aukehoekstra.substack.com/p/batteries-li…
Image
Many of my followers know this picture: it visualizes how the IEA underestimates solar. Now I see basically the same problem in their new battery report.

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The IEAs new battery report gives a lot of great info on batteries but also two predictions taken from their authoritative world energy outlook:
1) STEPS which is basically business as usual
2) NZE (Net Zero Emissions) which is aspirational
iea.org/reports/batter…
Read 11 tweets
AukeHoekstra Profile picture
Jun 16, 2024
Batteries: how cheap can they get?

I used the Sunday afternoot to describe how I think that dirt cheap batteries will completely transform our electricity grid, paving the way for solar and wind and replacing grid reinforcements with grid buffers
aukehoekstra.substack.com/p/batteries-ho…
This is something I'm working on for different government and grid operator projects, but I never realized just how cheap sodium batteries could become and how much of a game changer that will be.

So I used my Sunday evening to write this and would love your feedback!
First I look at the learning curve and then we see it is extremely predictable: every doubling of production has reduced prices by around 25%.

It's even steeper and more predictable than solar panels, the poster child of this type of learning curve.
(More details on substack.) Image
Read 15 tweets

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